Portable storage container



FIG. 1 is a perspective view of the portable storage container;

FIG. 2 is a front elevational view of the portable storage container;

FIG. 3 is a left side elevational view of the portable storage container;

FIG. 4 is a right side elevational view of the portable storage container;

FIG. 5 is a rear elevational view of the portable storage container; and,

FIG. 6 is a top plan view of the portable storage container.

The broken lines shown in FIGS. 3 and 5 illustrate portions of the article which form no part of the claimed design. 

The ornamental design for a portable storage container, as shown and described. 